class ThreeService {
    constructor() {
      // 这里可以初始化一些Three.js相关的配置
    }
  
    // 生成简单3D场景的JSON描述
    generateSimpleScene() {
      return {
        scene: {
          objects: [
            {
              type: 'box',
              position: { x: 0, y: 0, z: 0 },
              size: { width: 1, height: 1, depth: 1 },
              color: 0xff0000
            },
            {
              type: 'sphere',
              position: { x: 2, y: 0, z: 0 },
              radius: 0.5,
              color: 0x00ff00
            }
          ],
          camera: {
            position: { x: 0, y: 5, z: 10 },
            lookAt: { x: 0, y: 0, z: 0 }
          }
        }
      };
    }
  
    // 处理模型旋转
    rotateModel(modelData, rotation) {
      // 这里可以添加复杂的3D模型旋转逻辑
      return {
        ...modelData,
        rotation: {
          x: (modelData.rotation?.x || 0) + (rotation.x || 0),
          y: (modelData.rotation?.y || 0) + (rotation.y || 0),
          z: (modelData.rotation?.z || 0) + (rotation.z || 0)
        }
      };
    }
  }
  
  module.exports = new ThreeService();